4-(substituted cycloalkylmethyl) imidazole-2-thiones, 4-(substituted cycloalkenylmethyl) imidazole-2-thiones, 4-(substituted cycloalkylmethyl) imidazol-2-ones and 4-(substituted cycloalkenylmethyl) imidazol-2-ones and related compounds

A compound of the formula

• where X is O or S;
• the dashed lines represent a bond, or absence of bond with the proviso that only one double bond is present in the ring and that two adjoining dashed lines do not both represent a bond;
• R1, R2, R3, and R4 are independently H, phenyl, said phenyl group being optionally substituted independently with one, two or three C1-6alkyl, SO3H, N3, halogen, CN, NO2, NH2, C1-6alkoxy, C1-6thioalkoxy, C1-6alkylamino, C1-6dialkylamino, C2-6alkynyl or C2-6alkenyl groups,
• or said R1, R2, R3, and R4 groups are independently alkyl of 1 to 4 carbons, cycloalkyl of 3 to 5 carbons, CH2CN, CH2SR5, CH2NR6R6, COR5, CH2OR5, OR6, SR6. NR6R6, alkenyl having 1 to 4 carbons, alkynyl having 1 to 4 carbons, cycloalkyl having 3 to 6 carbons, F, Cl, Br, I, CF3, or CN, an oxygen double bonded to the ring carbon with the proviso that the adjacent dashed line within the ring represents absence of a bond;
• R5 is H, OR7, alkyl of 1 to 4 carbons, CF3, cycloalkyl of 3 to 6 carbons, phenyl, phenyl substituted with one or two alkyl groups of 1 to 4 carbons, with F, Cl, Br, I, or with CF3;
• R6 is H, alkyl of 1 to 4 carbons, allyl, cycloalkyl of 3 to 6 carbons, phenyl, phenyl substituted with one or two alkyl groups of 1 to 4 carbons, with F, Cl, Br, I, or with CF3, and
• R7 is H, alkyl of 1 to 4 carbons, allyl, cycloalkyl of 3 to 6 carbons, phenyl, phenyl substituted with one or two alkyl groups of 1 to 4 carbons, with F, Cl, Br, I, or with CF3.